Multiple myeloma is the second most common blood cancer in adults. It starts in the white blood cells that are responsible for creating antibodies that help the body fight infections. Once the myeloma cells begin to multiply, it makes it harder for the blood cells to function properly. There are effective treatments for multiple myeloma, including immunotherapies that can significantly extend survival; however, in some, the cancer cells become treatment resistant.
Source: https://medicalxpress.com/news/2026-04- ... ients.html
